Combination key lock box open with keys inside

Master Lock 83mm Portable Key Safe Combination Lock Box Weather Resistant 5400DAU

Name: Master Lock 83mm Portable Key Safe Combination Lock Box Weather Resistant 5400DAU
Brand: Master Lock
SKU: 5400DAU
Price: 55.64 AUD
Availability: InStock

SKU 5400DAU

By: Master Lock

Save 8%

$60.25

$60.25 - $60.25

$60.25

$55.64

$55.64 - $55.64

$55.64

Availability: This product will be delivered in 3-5 business days

Quantity

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Delivery Notice:

Please allow 3-5 business days for processing before it's ready for delivery or pickup. All standard delivery options still apply.

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Product Description

Master Lock Portable Key Safe Lock Box (5400DAU) – Key Lock Box

Instantly establish highly secure, 24/7 keyless access for trusted individuals and completely eradicate the terrifying liability of hiding spare keys under doormats with the highly formidable Master Lock Portable Key Safe (5400DAU). In the rapidly expanding Airbnb, real estate, and home healthcare sectors, granting secure property access to multiple people at different times is a massive logistical nightmare. This elite key lock box acts as your ultimate, impenetrable miniature vault. Operating entirely via a highly secure, 4-digit set-your-own numeric dial system, it provides 10,000 unique possible code variations, allowing you to instantly grant temporary or permanent access to cleaners, contractors, and guests without ever being physically present to hand over a key.

Engineered for absolute worksite versatility and uncompromising physical security, the 5400DAU features a highly robust 83mm wide metal body, providing terrifying physical strength against brute-force hammer strikes and severe tampering attempts. Unlike wall-mounted safes that require drilling into brick, this portable unit features a massive, vinyl-coated shackle designed specifically to hang securely 'over-the-knob' of any standard door handle or fence rail without causing devastating scratches to the paint. Protected by a weatherproof sliding shutter door that completely shields the dials from driving rain and corrosive dirt, this massive capacity outdoor key safe is the definitive, hassle-free security upgrade for modern property management.

Who Is The Master Lock Portable Key Safe Ideal For?

This 83mm lock box delivers portable over-the-knob installation, a 4-digit combination, and massive internal storage. It is highly recommended for:

Real Estate Agents & Airbnb Hosts: Utilizing a highly reliable key lock box to safely store property keys on the front door handle, allowing prospective buyers or short-term rental guests to check in seamlessly at any hour.
Home Healthcare & Elderly Care: Providing a secure, keyless entry point for critical caregivers and nurses, ensuring they can access the property during an emergency without the patient having to get up to unlock the door.
Construction & Tradies: Deploying the portable outdoor key safe on a jobsite fence. This allows dozens of different sub-contractors to securely access the site keys simply by knowing the 4-digit code.
Domestic Homeowners: Taking absolute advantage of the 5-key capacity to safely store a backup set of house keys, completely eliminating the massive expense of calling an emergency locksmith when locked out.

Key Features and Performance Benefits:

Portable 'Over-The-Knob' Design: The ultimate installation convenience. It requires absolutely no tools, no drilling, and no permanent damage to your walls. You simply open the box, release the shackle, and lock it directly onto any standard door knob, handle, or fence rail instantly.
4-Digit Resettable Combination: Everyday keyless convenience. The lock features 4 numbered dials, giving you exactly 10,000 possible code combinations. You can easily reset the code between different Airbnb guests to maintain absolute security.
Massive 5-Key Capacity: Engineered for commercial utility. The spacious internal cavity (89mm tall x 70mm wide) comfortably holds up to 5 standard house keys, or large, bulky electronic car key fobs without jamming the door mechanism.
Weatherproof Shutter Door: Total environmental isolation. A heavy-duty plastic sliding door drops down to completely cover the combination dials. This prevents driving rain from rusting the mechanism and hides the dials from opportunistic thieves.
Vinyl-Coated Non-Scratch Shackle: The heavy-duty steel shackle and the back of the metal body are completely coated in soft vinyl and molded plastic. This guarantees the heavy metal box will absolutely never scratch the paint off your expensive front door.

Technical Specifications & Dimensions:

Brand: Master Lock
Model Number: 5400DAU
Product Type: Portable Key Safe / Key Lock Box / Outdoor Key Safe
Body Width: 83mm (Solid Metal Construction)
Internal Dimensions: 89mm (H) x 70mm (W) x 25mm (D)
Shackle Diameter: 10mm (Vinyl Coated)
Lock Type: 4-Digit Resettable Combination (10,000 combinations)
Capacity: Safely holds up to 5 standard keys.

Delivery Information

Dispatch: Items marked as “In stock” or “Ready to be shipped” are usually dispatched within 1 business day after payment is received. If an item is not in stock and ordered from our supplier, please allow 3–5 business days for processing before it is ready for delivery or pickup. All standard delivery options still apply.

Shipping: Delivery costs are calculated at checkout based on your location and order size. Bulky items and chemicals may attract additional freight charges and cannot be sent to PO Boxes.

Delivery: Parcels are delivered by road freight. Authority to leave may be used if no one is available to receive the order. For full details, please see our Shipping & Delivery Policy

Business days to delivery

NSW
City	1 Day
VIC
Melbourne	1 Day
Regional	3–4 Days
QUEENSLAND
Brisbane	1–2 Days
Regional	3–4 Days
SOUTH AUSTRALIA
Adelaide	2–3 Days
Regional	4–5 Days
NORTHERN TERRITORY
All Areas	4–6 Days
WESTERN AUSTRALIA
All Areas	4–6 Days
TASMANIA
All Areas	4–6 Days

Frequently Asked Questions

Does this key safe require drilling into a wall?

Absolutely NOT. That is the massive advantage of the 'Portable' 5400DAU model. It features a padlock-style shackle that simply loops over your front door handle, a fence rail, or a pipe. It requires zero tools or permanent installation.

Can I change the combination to a number I want?

YES! The combination is fully 'Resettable'. When the lock box is open, you flip a small internal lever, dial your new 4-digit code, and flip the lever back. You can change the code as many times as you like (e.g., between different Airbnb guests).

What happens if I forget my code?

If you forget your custom code and the lock box is closed, there is absolutely no override key or 'master reset' button. For security reasons, you will be permanently locked out and will have to physically cut the massive 10mm shackle off. Always write your code down!

Is it completely waterproof for outdoor use?

The heavy-duty metal body and the sliding shutter door provide exceptional weather resistance, keeping the dials perfectly clean and preventing rain from entering. However, it is not a submarine; if completely submerged underwater, water will enter.

Will this hold a modern electronic car key fob?

Yes! The internal cavity is exceptionally spacious (89mm tall x 70mm wide x 25mm deep). It will comfortably hold up to 5 standard house keys on a ring, or a large, bulky modern electronic car key fob.

Will the heavy metal box scratch the paint on my front door?

No. Master Lock specifically engineered this model with a thick vinyl coating over the steel shackle, and a soft molded plastic bumper covering the entire back of the metal body to completely protect your door from devastating scratches.

How do I release the shackle to attach it to a door handle?

You must first dial the correct 4-digit code and open the main compartment door. Inside the box, there is a small metal release lever. Pushing this lever allows you to pull the shackle completely out, loop it over the door handle, and click it back in.

Is it difficult to spin the dials?

No. The precision-engineered dials click smoothly and satisfyingly into place, making it incredibly easy to rapidly dial your code. The sliding shutter door ensures the dials never get clogged with dirt or grit.

Can a thief easily smash it open with a hammer?

The body is constructed from heavy-duty, solid metal alloy designed to withstand devastating physical abuse and aggressive hammer strikes. While no safe is invincible, it acts as an incredibly formidable physical and visual deterrent.

Is it battery powered?

No. It is a 100% mechanical device. There are absolutely no batteries to go flat, no Bluetooth connections to fail, and no complicated apps to download, guaranteeing flawless reliability every single time.

Can I use this indoors?

Yes, absolutely. While it is built to survive the outdoors, it is highly popular for indoor use, such as locking away restricted master keys inside a corporate office or school facility.

Do you offer trade pricing for real estate agencies?

Yes, Freshway Supplies provides highly competitive volume pricing and trade accounts for real estate agencies, property managers, and Airbnb hosts ordering bulk cartons of key safes. Contact us to establish your account.

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